*SUPPORT*
IN: wif fep OUT: RED PURPLE
IN: fep kiki dax tufa zup OUT: GREEN BLUE BLUE PURPLE
IN: wif gazzer fep OUT: PURPLE RED
IN: zup OUT: GREEN
IN: wif fep dax OUT: RED PURPLE BLUE
IN: wif OUT: RED
IN: wif dax tufa dax OUT: BLUE RED BLUE RED BLUE
IN: dax kiki wif wif OUT: RED RED BLUE
IN: fep fep OUT: PURPLE PURPLE
IN: zup dax OUT: GREEN BLUE
IN: zup wif gazzer wif OUT: GREEN RED RED
IN: fep OUT: PURPLE
IN: wif kiki dax gazzer zup OUT: GREEN BLUE RED
IN: fep zup OUT: PURPLE GREEN

*QUERY*
IN: fep fep kiki wif gazzer zup wif OUT: PURPLE GREEN RED RED PURPLE
IN: dax gazzer dax OUT: BLUE BLUE
IN: dax fep kiki wif gazzer wif OUT: BLUE RED RED PURPLE
IN: fep gazzer dax OUT: BLUE PURPLE
IN: dax kiki fep kiki wif OUT: RED PURPLE BLUE
IN: dax gazzer fep kiki wif kiki dax OUT: BLUE RED PURPLE BLUE
IN: zup kiki zup OUT: GREEN GREEN
IN: zup kiki fep kiki dax kiki dax OUT: BLUE BLUE PURPLE GREEN
IN: wif kiki fep OUT: PURPLE RED
IN: dax dax OUT: BLUE BLUE

*GRAMMAR*
dax -> BLUE 
 wif -> RED 
 zup -> GREEN 
 fep -> PURPLE 
 u1 kiki x1 -> [x1] [u1] 
 u1 gazzer x1 -> [x1] [u1] 
 x1 tufa x2 -> [x2] [x1] [x1] 
 u1 x1 -> [u1] [x1] 
 